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1
avatar+87 

m−1/3= 2m − 7

 options:

m = 6

m = 4

m = 5

m = -3

 Jan 23, 2019
 #1
avatar+107405 
+2

(m - 1)/3  = 2m - 7         multiply through by 3

 

m - 1   =  6m - 21      add 21 to both sides, subtract m from both sides

 

20 = 5m        divide both sides by 5

 

4 = m

 

 

cool cool cool

 Jan 23, 2019
edited by CPhill  Jan 23, 2019

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